Joint Base Charleston (JB CHS) Multiple Award Construction Contract (MACC)

The 628th Contracting Squadron at Joint Base Charleston, South Carolina, intends to increase the ceiling value of its HUBZone Multiple Award Construction Contract (MACC) from $96 million to $161 million through sole source awards to the three existing contract holders—Outside the Box, Hightower Construction, and A Plus K&K JV—under FAR 6.302-1. This action is justified due to the highly specialized nature of the work required, which only these current providers are capable of performing, and is necessary to ensure uninterrupted mission-critical construction services through the end of the current contract period on May 14, 2029, with a follow-on MACC planned for 2027. This notice serves solely as an informational announcement and is not a solicitation for competitive proposals; no award will be made based on responses submitted in reaction to this posting. Interested parties may express their capabilities and demonstrate why competitive bidding would benefit the government, but only submissions received by 1:00 PM EST on May 11, 2026, will be considered. Responses must include clear, compelling, and convincing evidence supporting the rationale for competition, though no reimbursement will be provided for associated costs. The NAICS code for this requirement is 236220, and the set-aside designation is HUBZone Sole Source. All communication must be directed through the designated point of contact listed in the notice, and no telephone inquiries will be accepted. The contract is managed under the Department of Defense with performance to be conducted at Joint Base Charleston, SC.